thanks guys

Well..I added the water yesterday sincer its so huge(50 gallons) used the hose and the added the biowheel 350 that arrived yesterday and the heater-300 watt. I also added Aqua Plus Water Conditioner. According to the label, 1 capful treats 5 gallons so since its 50 gallons I did 10 capfuls. The tank has been running since yesterday and the temperature is now at 80. The biospira arrived just now. It had cool packs and seems cool, not warm..but not overly cold either. So should I add it now? I was thinking maybe I should hold off introducing the girls until tonight or maybe tommorow. Does that sound ok?
also, initially I was going to add 5 girls..but 1 girl seems to have a slight case of fin rot and another hasnt been acting normal..the second girl is getting treated with maracyn II (since yesterday) and seems to be better, eating ect. So should I just introduce the 3 girls and then introduce the other 2 when they are better or can I introduce the one with fin rot so 4 girls and wait on the 5th one to finish medication first before introducing her? I'm even debating whether I should continue with the maracyn II since she seems better..maybe I'll continue just to be safe. thanks again for any info